Satellite data are making revolutionary changes in the field of archaeology, and nowadays they have been widely used by the scientific community for regular mapping and monitoring of cultural heritage sites. The development of synthetic aperture radar (SAR) sensors helps in monitoring the heritage site with higher accuracy. This study uses the Persistent Scatter Interferometric SAR (PSInSAR), which is an advanced technique of differential SAR interferometry to find the surface deformation of the Angkor Wat temple and its premises. Seven interferometric data from the Phased Array type L-band Synthetic Aperture Radar (PALSAR) of Advanced Land Observing Satellite-1 (ALOS-1) for the period 2006–2009 and ten interferometric data from the ALOS-2 PALSAR-2 for the period 2014–2018 have been used in this study to identify the deformation pattern. It is found from this study that the Angkor Wat temple and its outer walls are stable.

中文翻译：

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基于 PSInSAR 的吴哥窟文化遗产地表面变形测绘

卫星数据正在考古领域发生革命性的变化，如今它们已被科学界广泛用于文化遗产地的定期测绘和监测。合成孔径雷达 (SAR) 传感器的发展有助于更准确地监测遗产地。本研究使用持续散射干涉 SAR (PSInSAR)，这是一种先进的差分 SAR 干涉测量技术，用于发现吴哥窟寺庙及其建筑的表面变形。2006-2009 年期间高级陆地观测卫星 1 (ALOS-1) 的相控阵型 L 波段合成孔径雷达 (PALSAR) 的七项干涉数据和该期间 ALOS-2 PALSAR-2 的十项干涉数据本研究使用 2014-2018 年来确定变形模式。